Solus OS is a Linux distribution built from scratch. It uses a forked version of the PiSi package manager, maintained as "eopkg" within Solus, and a custom desktop environment called "Budgie", developed in-house. The Budgie desktop, which can be set to emulate the look and feel of the GNOME 2 desktop, is tightly integrated with the GNOME stack. The distribution is available for 64-bit computers only.